Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 11:13

General

  • Target

    customs declaration form (china translate).exe

  • Size

    347KB

  • MD5

    f6b88b481ab6cdea460737d59ad3dfda

  • SHA1

    eae0e490af400787d6afd2305c9a6609b7dccab3

  • SHA256

    5f918d7bd2348f90d00f38003918dc9e614741d42f7157bff50cfac0e2d4fe06

  • SHA512

    54e17482ce07754023c3a60d4b3b08917a506798ab47c834d9b65a197300067e248fdcb627d303a930c616fd9ce7b4b5ff3e32bddd6646aae004e4716f397f5f

  • SSDEEP

    6144:7pOKFvmdgaAPcWAGKxphVXUdbV10UMSn03EqXHqlXQso/4cmLpTqJjM:gkv+1zbbDUZn00qXe3ux

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\customs declaration form (china translate).exe
    "C:\Users\Admin\AppData\Local\Temp\customs declaration form (china translate).exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /release
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:1264
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /renew
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /renew
        3⤵
        • Gathers network information
        PID:1720
    • C:\Users\Admin\AppData\Local\Temp\customs declaration form (china translate).exe
      "C:\Users\Admin\AppData\Local\Temp\customs declaration form (china translate).exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1580-22-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1580-2-0x0000000000A20000-0x0000000000A78000-memory.dmp

    Filesize

    352KB

  • memory/1580-0-0x0000000001180000-0x00000000011DC000-memory.dmp

    Filesize

    368KB

  • memory/1580-3-0x00000000048C0000-0x0000000004900000-memory.dmp

    Filesize

    256KB

  • memory/1580-4-0x0000000000A80000-0x0000000000AC0000-memory.dmp

    Filesize

    256KB

  • memory/1580-5-0x0000000000B00000-0x0000000000B40000-memory.dmp

    Filesize

    256KB

  • memory/1580-6-0x0000000000B80000-0x0000000000BCC000-memory.dmp

    Filesize

    304KB

  • memory/1580-7-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/1580-8-0x00000000048C0000-0x0000000004900000-memory.dmp

    Filesize

    256KB

  • memory/1580-1-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-29-0x0000000004A40000-0x0000000004A80000-memory.dmp

    Filesize

    256KB

  • memory/2648-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2648-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2648-26-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-27-0x0000000004A40000-0x0000000004A80000-memory.dmp

    Filesize

    256KB

  • memory/2648-28-0x0000000074700000-0x0000000074DEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB